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Cooper  extraction
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In the copper area the daily target was also seven wagons. Provided that one shovelful of copper weighed less than that of pyrite, work was somewhat less difficult in these areas. Furthermore, climate conditions in copper tunnels were more stable and there was no great temperature variation as in the pyrite area. According to the same estimate, the quantity a prisoner had to manually load onto the wagons every day to then transport them to the heap was 8,400 kilograms of copper.

The work routine was also the same in the copper area. At the start, they extracted mineral with wagons from the work front where the explosion had occurred, cleaned the inert material, and then reinforced the cleared front, create holes to detonate the explosives for the successive shift.

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